I am starting my ISCW, and also need to get some time with this device for some side work that I do. I am not quite sure the ISCW covers the ASA product line? I was also was not finding much on emulating this product through Dynamips, or something of the like. I figured I would start here, since I know there is much first hand experience. If I were to pickup the 10 user ASA 5505, would that show me the ropes enough or are their feature sets in the more expensive ASA devices that I would be missing out on?